.weui-mask {
    position: fixed;
    z-index: 2000;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5)
}
.weui-half-screen-dialog {
    position: fixed;
    z-index: 3000;
    left: 0;
    right: 0;
    bottom: 0;
}
.weui-half-screen-dialog__ft {
  display: flex;
}
